Combo pack B5R/GR + B2R/R. The rechargeable LED LENSER SEO-B5 features Power-Light, a dimming function and a signal light. Both models are focusable by turning the lamp head. Of course all of them are splash proof, so that even strong rain will not harm them. The small LED LENSER B2R with red light is great for the use as an additional rear light for rough mountain bike tours on uneven trails-off regular roads-for example. The B2R is great as an additional rear light, thanks to the rubberized fastener. The lamp also feature a dimming function.